After deploying SAM and running the test generator for about 30 mins, your Storm
Operation Mode of the app renders important metrics within each component on the canvas like
below.

You can click on Show Metrics to get more details on the metrics
and drill down on individual metrics. Note the detailed level metrics for All
Components, TruckGeoEvent Kafka source, and
Dashboard-Predictions Druid Sink.

Key metrics include the following:

Metric Name

Description

Execute Latency

The average time it takes an event to be processed by a given
component

Process Latency

The average time it takes an event to be acked. Bolts that join,
aggregate or batch may not Ack a tuple until a number of other Tuples have been
received

Complete Latency

How much time an event from source takes to be fully processed and acked by
the topology. This metrics is only available for sources (e.g.: Kafka
Source)

Emitted

The number of events emitted for the given time period. For
example, for a Kafka Source, it is the number of events consumed for the given
time period

Acked

The number of events acked for the given time period. For example,
for a Kafka Source, it is the number of events consumed and then acked.